COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

In the inlet guide vanes only

In the impeller only

In the diffuser and impeller

In the diffuser only

Variable speed

Constant speed unloader

Relief valve

Start-stop motor

Decreases

Remain same

First increases and then decreases

Increases

Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions

Volume of air delivered by the compressor

Volume of air sucked by the compressor during its suction stroke

None of the listed here

Decreases heat loss is exhaust

Allows operation at very high altitudes

Allows high compression ratio

Increases thermal efficiency

Increase

Remain unaffected

Other factors control it

Decrease

Actual compressor work and theoretical compressor work

Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet

Compressor work and turbine work

Output and input

First decreases and then increases

Increases

Decreases

Remain constant

60 - 70%

70 - 90%

20 - 30%

40 - 50%

Isothermal compression

Adiabatic compression

Polytropic compression

Isentropic compression